
The Independent Advisor star ratings for solar panels is calculated based on weighted factors: durability and reliability (35 per cent), performance (35 per cent), and customer satisfaction (30 per cent). The customer satisfaction scores are derived from a recent survey of over 1,500 Independent readers who own solar.

It might be helpful if we get into more detail. What is to be taken into account when calculating the solar panel payback time? To begin with, the household standard energy spending and the system sizethat will be required to address those levels of consumption. Let’s consider a system size of 4.4 kWp, without a. . In recent years, many people across the country started realising that going solar is a valid solution to address the current volatility of electricity prices. By shortening the payback time of solar panels, people that once saw solar.